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Cover Figure

ONLINE COVER This week features a Research Article that describes how the stress-activated protein kinase Hog1 prevents progression through the cell cycle by arresting budding yeast cells in the G1 phase when they are exposed to hyperosmotic stress. The image shows budding yeast. [Image: Maxim Zakhartsev and Doris Petroi, International University Bremen, Germany]

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Science Signaling. ISSN 1937-9145 (online), 1945-0877 (print). Pre-2008: Science's STKE. ISSN 1525-8882